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Historical Population and Area

City of Ontario

Year

Area (Sq. Miles)*

Population Estimate**

Pop. Est. Source

2009

173,188

CALIF. DEPT. OF FINANCE

2008

172,608

CALIF. DEPT. OF FINANCE

2007

171,911

CALIF. DEPT. OF FINANCE

2006

170,567

CALIF. DEPT. OF FINANCE

2005

170,111

CALIF. DEPT. OF FINANCE

2004

168,322

CALIF. DEPT. OF FINANCE

2003

166,169

CALIF. DEPT. OF FINANCE

2002

163,275

CALIF. DEPT. OF FINANCE

2001

159,461

CALIF. DEPT. OF FINANCE

2000

49.828

158,007

U.S. CENSUS

1999

 

152,413

CALIF. DEPT. OF FINANCE

1998

 

150,021

CALIF. DEPT. OF FINANCE

1997

 

147,322

CALIF. DEPT. OF FINANCE

1996

36.966

145,459

CALIF. DEPT. OF FINANCE

1995

 

144,087

CALIF. DEPT. OF FINANCE

1994

 

143,097

CALIF. DEPT. OF FINANCE

1993

 

141,264

CALIF. DEPT. OF FINANCE

1992

 

139,516

CALIF. DEPT. OF FINANCE

1991

 

136,383

CALIF. DEPT. OF FINANCE

1990

 

133,179

U.S. CENSUS

1989

 

124,260

CALIF. DEPT. OF FINANCE

1988

 

118,794

CALIF. DEPT. OF FINANCE

1987

 

113,619

CALIF. DEPT. OF FINANCE

1986

36.823

110,691

CALIF. DEPT. OF FINANCE

1985

 

108,950

CALIF. DEPT. OF FINANCE

1984

 

104,254

CALIF. DEPT. OF FINANCE

1983

 

100,012

CALIF. DEPT. OF FINANCE

1982

36.060

94,325

CALIF. DEPT. OF FINANCE

1981

34.241

92,104

CALIF. DEPT. OF FINANCE

1980

 

88,820

U.S. CENSUS

1980

35.393

87,300

CALIF. DEPT. OF FINANCE

1979

35.365

81446

CALIF. DEPT. OF FINANCE

1978

33.409

76,001

CALIF. DEPT. OF FINANCE

1977

33.270

66,700

CALIF. DEPT. OF FINANCE

1976

32.114

64,114

CALIF. DEPT. OF FINANCE

1975

 

63,186

U.S. SPECIAL CENSUS

1974

32.057

62,600

CALIF. DEPT. OF FINANCE

1973

23.051

63,700

CALIF. DEPT. OF FINANCE

1972

23.029

64,100

CALIF. DEPT. OF FINANCE

1971

22.450

64,400

CALIF. DEPT. OF FINANCE

1970

22.390

64,118

U.S. CENSUS

1969

22.229

63,800

CALIF. DEPT. OF FINANCE

1968

22.104

62,300

CALIF. DEPT. OF FINANCE

1966

20.342

60,753

CALIF. DEPT. OF FINANCE

1965

19.832

60,200

CALIF. DEPT. OF FINANCE

1964

19.356

57,400

CALIF. DEPT. OF FINANCE

1963

18.791

52,750

CALIF. DEPT. OF FINANCE

1962

18.633

50050

CALIF. DEPT. OF FINANCE

1960

17.897

46,617

U.S. CENSUS

1959

16.628

44,800

CALIF. DEPT. OF FINANCE

1957

15.763

41,656

U.S. SPECIAL CENSUS

1956

14.282

39,432

U.S. SPECIAL CENSUS

1954

13.625

34,255

U.S. SPECIAL CENSUS

1952

12.619

26,279

U.S. SPECIAL CENSUS

1950

12.181

22,872

U.S. CENSUS

1946

11.128

19,638

U.S. SPECIAL CENSUS

1940

 

14,197

U.S. CENSUS

1930

 

13,583

U.S. CENSUS

1920

 

7,280

U.S. CENSUS

1910

11.940

4,274

U.S. CENSUS

1900

 

722

U.S. CENSUS

1891

0.38

683

INCORPORATION

NOTES: * AREA CALCULATIONS ARE BASED ON CITY OF ONTARIO BOUNDARY CHANGES AS OF JULY OF EACH YEAR.

 

** CALIFORNIA DEPARTMENT OF FINANCE ESTIMATES REFLECT JANUARY 1 OF EACH YEAR. U.S. CENSUS FIGURES REFLECT APRIL 1 OF EACH CENSUS PERIOD.

(see latest California DOF figures)




 
 
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